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CC2538 ZNP over USB cdc interface - communication speed ?

Dhanraj
Guru 14820 points
Other Parts Discussed in Thread: CC2538, Z-STACK

When we CC2538 ZNP over USB cdc interface - what communication speed does it support ?

  • +1
    TI__Guru**** 214077 points

    Hi Dhanraj,

    ZNP_UART_BAUD is equal to HAL_UART_BR_115200, which is applied to HalUARTOpen -> HalUARTOpenUSB in Z-Stack 3.0.2\Components\hal\target\CC2538ZNP\hal_uart_usb.c

    Regards,
    Ryan

  • 0 in reply to Ryan Brown1
    Guru 14820 points

    what is the maximum  date rate we can keep for znp  over USB interface application ? since cc2538  usb interface supports up to 12 mbps.

  • 0 in reply to Dhanraj
    TI__Guru**** 214077 points

    From the Z-Stack ZNP Interface Specification: "The USB transport exposes the CDC (communication device class).  USB interface and exposes a virtual COM port to the host. The host processor would then access this device as a regular COM port device and communicate with the ZNP using the UART transport." 

    The largest baudrate settings I've seen attempted are 230400, 460800, and 921600.

    Regards,
    Ryan